What are the reasons for the broken bag of the eight-side sealing food packaging bag?

　　There are many types of packaging bags in the market, and the content is very complicated. Eight-side-sealed food packaging bags are currently more popular in the packaging market due to their own advantages. Broken bags are an important factor affecting the quality of product packaging. There are many factors, the following are our packaging manufacturers to analyze the reasons for the broken bags of the eight-side-sealed food packaging bags?

　　1. Bag-making process: The bag-making temperature is too high, resulting in a decrease in the performance of the heat-sealing material at the heat-sealing place, thus affecting the bag breakage rate; the bag-making pressure is too large, causing the heat-sealing material at the heat-sealing place to be extruded. , the heat sealing effect of the sealing is reduced, causing the bag to break.

　　2. In terms of materials: the material needs to have sufficient thickness. If the thickness is insufficient, the strength of the packaging bag will be insufficient, and then the bag will be broken; the addition of recycled materials in the material, the addition of too much, and the insufficient strength of the packaging bag will also cause damage to the bag. bag.

　　3. Influence of packaging: When packaging some heavy objects or powder items, such as salt, washing powder, etc., after filling such items and before heat sealing, the air in the bag should be discharged to reduce packaging. The force of the bag wall allows the solids to be directly stressed, thereby reducing the damage of the bag.

　　Fourth, the peel strength of the composite film: the eight-side sealing bag should also pay attention to the strength of the composite film. If the peel strength of the composite film is too low, it is difficult to meet the requirements of simultaneous stress on the multi-layer composite material, resulting in the force cannot be better dispersed , then in the process of falling, it will cause the bag to break. In addition, in the high-temperature cooking bag, due to the poor heat resistance of some adhesives, especially in some complex structures, during high-temperature cooking, it will also cause cracks at the sealing edge and delamination of the composite film.

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